"The TF300 has a 1.2 GHz Tegra 3 processor while the TF200 has a 1.3 GHz version
The new model doesn’t have an LED flash for the rear camera.
The new model has 16GB of storage while the original comes in 32GB or 64GB versions.
Battery life tops out at 8.5 hours for the tablet or 12 hours with the keyboard docking station. The TF200 can run for up to 18 hours with the dock or 9.5 hours without.
The TF300 is also a hair thicker than the TF200, measuring 9.9mm thick instead of 8.3mm. It’s also heavier, at 640 grams (or about 1.4 pounds) rather than 582 grams (1.3 pounds)."